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Mojave Kingcup Cactus (Echinocereus mojavensis)
Cactus Around Las Vegas, Vegetation Around Las Vegas
Mojave Kingcup Cactus (Echinocereus mojavensis)

General: Mojave Kingcup Cactus (Echinocereus mojavensis), also called Mojave Claret Cup, is mound-shaped plant formed of many, densely packed stems to about 1-foot tall and densely covered with gray, twisted and interlocking spines. The spines are round rather than angled spines.

Mojave Kingcup Cactus is a fairly common component of vegetation communities on well-drained gravelly and rocky soils on upper bajadas and slopes into the mountains in the Upper Sonoran (Pinyon-Juniper Woodland), Transition (Yellow Pine Forest), and Canadian (Pine-Fir Forest) life zones.

Around Las Vegas, Kingcup Cactus can be found most easily in the Pinyon-Juniper woodlands on Mt. Charleston and in the Mojave National Preserve.

Family: Cactus (Cactaceae).

Other Names: Claret Cup Cactus, Echinocereus triglochidiatus.

Mojave Kingcup Cactus (Echinocereus mojavensis)

Plant Form: Mound-shaped plant formed of many, densely packed stems.

Height: Usually to about 1-foot tall, to 16 inches.

Trunk: None.

Stems: Entire, cylindrical; mound composed of up to about 500 individual stems, each usually less than about 2 inches diameter, bluish green.

Stem Surface: Ribbed, about 10 ribs per stem.

Spines: Gray, round, to about 2-inches long, curved (almost wavy) and twisting, often interlocking with those of neighboring stems to form a dense web of spines covering the mound. Central and radial spines difficult to distinguish.

Mojave Kingcup Cactus (Echinocereus mojavensis)

Glochids: Absent.

Flowers: Blooms during spring (early for cactus). Inflorescence: Solitary flowers emerge from near the tip of individual stems. Flowers: funnel-shaped; orange to red, to about 3-1/2-inches diameter.

Fruit: Cylindrical, about 1-inch long, 1/2-inch diameter. Reddish when ripe, spines deciduous.

Seeds:

Habitat: Dry, well-drained gravelly and rocky soils on upper bajadas and moderate slopes into the mountains.

Distribution: Southern California to Colorado, and south through Texas into Mexico.

Elevation: About 5,000 feet to 10,000 feet.

Comments: Baker Kingcup Cactus recently was split from this species.

Mojave Kingcup Cactus (Echinocereus mojavensis)
Mojave Kingcup Cactus on Mt. Charleston
Mojave Kingcup Cactus (Echinocereus mojavensis)
A big one in Basin and Range National Monument
Mojave Kingcup Cactus (Echinocereus mojavensis)
Very large Mojave Kingcup Cactus
Mojave Kingcup Cactus (Echinocereus mojavensis)
Typical growth form shows many individual stems
Mojave Kingcup Cactus (Echinocereus mojavensis)
Curved, interlocking spines on a Mojave Kingcup Cactus
Mojave Kingcup Cactus (Echinocereus mojavensis)
Gass Peak, Desert NWR
Mojave Kingcup Cactus (Echinocereus mojavensis)
Gass Peak, Desert NWR
Mojave Kingcup Cactus (Echinocereus mojavensis)
Basin and Range National Monument
Mojave Kingcup Cactus (Echinocereus mojavensis)
Basin and Range National Monument
Mojave Kingcup Cactus (Echinocereus mojavensis)
Plants suffering from drought during 2022; Red Rock Canyon
Mojave Kingcup Cactus (Echinocereus mojavensis)
Mojave Kingcup Cactus flowers
Mojave Kingcup Cactus (Echinocereus mojavensis)
Mojave Kingcup Cactus flowers

Note: All distances, elevations, and other facts are approximate. Names generally follow the USDA database.
copyright; Last updated 220126

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